How is the required manometric head calculated?

Add the dynamic water level of the borehole, the geometric lift to the delivery point, and the friction losses in the pipework and fittings. The resulting figure is the head the pump must overcome at the required flow.

What flow rate is needed for agricultural irrigation?

It depends on the area and the crop. Drip irrigation typically needs 0.5 to 5 m³/h per hectare; sprinklers or pivots, 10 to 50 m³/h or more. JOVAL supplies multistage submersible models from 300 l/h up to 330 m³/h.

Industrial Catalog

Submersible pumps for boreholes and wells in Portugal

For agricultural abstraction from boreholes and wells in Portugal, JOVAL manufactures 3" to 10" submersible electric pumps.

Spring Submersible Pump

Spring 4" submersible pump for clean-water boreholes, JOVAL-made in Portugal.

Ecologic Pump

Ecologic pump for domestic supply and light irrigation, JOVAL-made in Portugal.

Detalhe superior da eletrobomba submersível JOVAL BS3

BS3 Submersible Pump

BS3 3" submersible pump for clean-water boreholes, JOVAL-made in Portugal.

BS4 Submersible Pump

BS4 4" submersible pump for clean-water boreholes, JOVAL-made in Portugal.

BJ4 Submersible Pump

BJ4 4" submersible pump for clean-water boreholes, JOVAL-made in Portugal.

BJ6 Submersible Pump

BJ6 6" submersible pump for clean water and higher flow, JOVAL-made in Portugal.

6″ to 10″

Cast Iron Hydraulic End

Cast-iron hydraulic end, 6" to 10", for agricultural and industrial abstraction, JOVAL-made in Portugal.

6″ Submersible Pump

X6S

6" AISI 304 submersible pump for boreholes, JOVAL-branded partner-origin range.

JOVAL manufactures submersible electric pumps in Portugal, from 3″ to 10″. Own series are hydraulic-bench tested for current, head and flow under the internal final-inspection procedure.

Updated 22/08/2026

Available diameters: 3" · 4" · 6" · 7" · 8" · 10"
Power: 0.25 kW – 150 kW
Max head: up to 477 m
Max flow: up to 330 m³/h
Series: BS3, Spring, 4"F, 4"BS, BJ6, Cast-iron pumps 6-10", Ecologic, X6S
Power supply: Single-phase 230 V · Three-phase 230/400 V

Frequently asked questions

How is the required manometric head calculated?

Add the dynamic water level of the borehole, the geometric lift to the delivery point, and the friction losses in the pipework and fittings. The resulting figure is the head the pump must overcome at the required flow.
What flow rate is needed for agricultural irrigation?

It depends on the area and the crop. Drip irrigation typically needs 0.5 to 5 m³/h per hectare; sprinklers or pivots, 10 to 50 m³/h or more. JOVAL supplies multistage submersible models from 300 l/h up to 330 m³/h.